The Knight of Darkness enlists a canine sleuth to ferret out hidden crime in one of Walter GIbson's greatest novels…and its' never-before-reprinted sequel!

First, The Shadow's investigation of a bizarre series of murders by remote control leads to the mysterious mastermind hiding within the sinister house of "Mox." Then, the Dark Avenger returns to Mox's "Crime County" after its legendary lawman is wrongly imprisoned!

BONUS: A thriller from the Golden Age of Radio!

This instant collector's item showcases the original color pulp covers by George Rozen and Graves Gladney, classic interior illustrations by Tom Lovell and Earl Mayan, and historical commentary by Will Murray and Anthony Tollin.